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Real blue-emitting light-emitting diodes based on fluorene derivative polymers

Authors :
Dong-Kyu Park
Hyung-Suk Woo
Min-Sook Kim
Seong-Jin Cho
Tae-Woo Kwon
C.G. Kim
Sung-Ho Jin
J.J. Oh
S.J. Park
B.S. Kim
Source :
Journal of Crystal Growth. 288:137-139
Publication Year :
2006
Publisher :
Elsevier BV, 2006.

Abstract

We have fabricated the polymeric light-emitting diodes (PLEDs) with new synthesized blue-emitting polymers, poly(phenyl-9,9-dioctyl-9′,9′-dihexanenitrile) fluorene (PPFC6N) and polymer blending of PPFC6N and polyfluorene (PFO). Our devices show a real blue emission for both polymers, showing the electroluminescence (EL) spectra near 445 nm, with relatively low turn-on voltage of polymer blend compared with that of PPFC6N. However, a slight blue shift occurred for PPFC6N when a 10 nm thick hole-blocking molecule, oxadiazole derivative, was introduced in the PLEDs.

Details

ISSN :
00220248
Volume :
288
Database :
OpenAIRE
Journal :
Journal of Crystal Growth
Accession number :
edsair.doi...........a6deef72f62c7b4463f092b6ac649eeb
Full Text :
https://doi.org/10.1016/j.jcrysgro.2005.12.041